Flanged pipe fittings are a prevalent type of pipe fittings. They connect piping system equipment such as pipes, valves, and pumps by being screwed together. When two flanges are bolted together, and a gasket forms a seal between them, the result is a flanged junction.

The selection of the type of flanged fitting depends on the system and application, where temperature and pressure are important factors. Flanged pipe fittings are often employed in water supply networks and are compatible with most common pipe types. They are simple to use, universal, and great for rigid pipelines, given they fit in tight spaces. Moreover, their maintenance is simple as it is easy to disconnect and reconnect them. However, note that flanged pipe fittings require bolts and are prone to leakage. Hawle offers a vast range of flanged pipe fittings to fit your need.

System 2000 connections are unique mechanical pipe fittings designed to attach water pipes made of plastic, such as HDPE/PE/PEX and OPVC/PVC.

There are still many pipes older than a century in several European cities that need to be replaced because of significant leakage rates. When these pipes fail, they are frequently replaced by PE and PVC pipes, as they offer lower failure rates than other materials. To meet this need, Hawle offers System 2000 pipe connections that are perfect for plastic pipes. System 2000 pipe connections are attached to the pipes using a brass grip ring with teeth elements, providing a restraint connection for plastic pipes.

Compared to other pipe laying technologies like PE-welding, for the System 2000 installation, no special tools or machinery or specially trained personnel are needed. Cold, rainy weather or groundwater in the pit also do not affect the fast and safe System2000 assembly. In addition to that, Hawle has a certificate from an external independent institution ”100 Years Expected Lifetime”.

Among other valve manufacturers of comparable mechanical connections for PE pipes, Hawle offers one of the broadest product pallets with System 2000: Pipe connections, bends, couplings, end caps, combi- and gate valves, suited for all types of installations are all part of the Hawle System 2000 offering. System 2000 diameters might be as little as d63 or as large as d630, depending on the product.

Most old water pipelines are built using cast iron, concrete, or asbestos cement. Retrofitting these old pipes with lighter and more flexible plastic components is common. However, properly connecting more recent plastic pipes to older concrete and metal ones might be difficult due to size and coupling incompatibilities. Synoflex range facilities this operation easily thanks to its high tolerance and multirange restraint couplings which were exclusively designed to join incompatible pipes. Hawle Synoflex multirange restraint joints can join a wide range of unique pipe combinations, such as:

• Grey cast iron pipe to PVC pipe or HDPE pipe
• Ductile cast iron pipe to PVC pipe or HDPE pipe
• Steel pipe to PVC pipe or HDPE pipe
• AC pipe to PVC pipe or HDPE pipe

Hawle Synoflex multirange restraint joints also enable metal – metal or plastic – plastic combinations. Some of the advantages of Synoflex connections include:

• Long connection lifetime
• Fast, safe, and simple repair solution
• Lower stocking costs thanks to a "one size fits all" approach
• Durable and corrosion resistant
• Applicable for nearly all pipe materials
• Reusable
• Suitable for both above-ground and underground installations.

Synoflex provides various pipe connections to meet a vast range of needs. These include the Synoflex  couplings, Synfolex flange adapter, Syno2000 connector, and SynoZAK  adapters. However, it is worth noting that Synoflex is only available up to DN 400.

The Nova Siria range includes pipe fittings made for water mains, especially for large diameters above DN 300. They have a wide tolerance range, fast and easy installation, and are up to 40 bar rated. They are ideal for a range of pipe materials: steel, concrete, asbestos concrete, HDPE, PVC, ductile and cast iron, and GRP.

Brass is a common material used in fittings, particularly of smaller diameters. Hawle offers three brass fittings, which are:

Plastic fittings are also common, primarily used in service lines (house connections). Plastic fittings made of POM or PP are corrosion-free and lightweight, making them a favorable choice for many. However, they are unsuitable for higher pressures and less robust than ductile iron. Therefore, they are usually ideal for house connections.

Hawle has a wide range of fittings and connections for gas applications that meet the EU standards. These products are also certified for bearing the GASTEC QA quality label. The gas products include fittings (elbows, tees, etc.), reducers, and connectors to satisfy a wide range of gas applications.

T-fittings, or pipe tee fittings are fittings that are used to connect two or more pipes. These fittings, characterized by their T-shaped form, attach the two pipes at a 90-degree angle. Among all pipe fittings and connectors, the T-fitting is one of the most adaptable and is frequently used in domestic, industrial, and commercial settings. Hawle offers various T-fittings made of different materials, also available in the Hawle-FIT and ISO-fittings series.

Similarly, a cross fitting is a pipe fitting with four openings in four directions used to connect four pipes. The pipe cross may have one inlet and three outlets or vice versa. In addition, the inlet and outlet diameters may be the same or different.

Elbow pipe fittings change the angle or direction of the pipe run, often in 11°, 30°, 45°, and 90° turn. The fitting's sweep indicates how quickly a transition or direction shift is made. They are applied in complicated designs of some water supply networks, where angular bends are needed. Hawle offers multiple elbow bends with 11°, 30°, 45°, and 90° turns.

In water systems involving the underground piping of water to domestic or to industrial areas, there is the need to bring a water supply to the surface at various strategic locations. Duck foot bends are often employed to connect fire hydrants away from or at the end of a pipeline. A duck foot bend fitting consists of two ends, where one end is vertical and the other is curved. In a fire hydrant application, the vertical end is connected to the bottom of the hydrant while the other end is often connected to a pipeline at a recommended depth below the ground.

Sometimes installing a pipeline can be a challenge, especially in uneven terrain. In such cases, custom solutions such as the Hawle Vario are needed, a telescopic fitting with an integrated ball and  socket joint permitting bending to all sides up to an angular deflection of 10 degrees. Vario saves time and has numerous application possibilities for drinking water and wastewater.

Hawle offers a wide variety of fittings and pipe connections for all standard pipe diameters. Reducing pipe fittings can be utilized if you need to connect two pipes of different diameters. Reducer pipe fittings are used to alter the pipe size from a bigger to a smaller diameter to meet the flow requirements or to adapt to existing piping. Like the other types of fittings, reducers are also vital as they add flexibility to the pipeline system.